The immobilizer system is designed to prevent an unauthorized person from starting the engine. Only keys registered with your vehicle's immobilizer system can be used to operate your vehicle. This system, however, is not a 100% anti-theft guarantee.
For models with "keyless access with push-button start system": If you press the push-button ignition switch when carrying an unregistered access key, the switch will not turn to the "ON" position and the engine will not start.
If the engine does not start, perform the procedure described in "Starting engine" 9-18.
For models without "keyless access with push-button start system": Even if an unregistered key fits into the ignition switch and can be turned to the "START" position, the engine will automatically stop after several seconds.
If the engine does not start, pull out the key once before trying again. Refer to "Ignition switch (models without "keyless access with push-button start system")" 3-4.
CAUTION
NOTE
To protect your vehicle from theft, please pay close attention to the following security precautions:
The vehicle has a maintenance-free type immobilizer system.
Security indicator light
Refer to "Security indicator light" 3-30.
Keys
Key replacementWarning chimes and warning indicator of he keyless access with push-button start
system
Access key warning indicator
In the Subaru Ascent, the keyless access with push-button start system is designed
to enhance both convenience and security. The system emits warning chimes and activates
the access key warning indicator on the combination meter to alert the driver of
incorrec ...
Light control switch
CAUTION
Extended use of vehicle lighting while the engine is not running may
lead to battery discharge in the Subaru Ascent.
Before leaving your Subaru Ascent unattended, ensure that the light control
switch is set to the OFF position. Even though the lights may automatically
turn off ...
Dtc p0757 shift solenoid "b" stuck on
CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0757 SHIFT SOLENOID "B" STUCK ONDTC detecting condition:Detected when two consecutive driving cycles with fault occur.Trouble symptom:• Vibration occurs at shift change.& ...